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问题 单项选择题

急性肾炎患儿给无盐或低盐饮食一直到（）

A.浮肿消退，血压正常

B.血沉正常

C.尿常规正常

D.Addis计数正常

E.肉眼血尿消失

答案

参考答案：A

单项选择题

阅读下面短文，回答下列问题。
2001年3月15日，北京大学教授于希贤来到抚仙湖，并组织考察组乘坐潜水器潜入湖底。他们利用声纳技术在水深15m处发现第一个目标。有一堵石墙，石料大小不一，每个石块上至少有一面到两面是平整的，带有人工加工过的痕迹。从声纳图上可以看到，该建筑区还具有中轴线和类似普通城市里的“一般居民居住区”。从建筑特点看，它们带有明显的当地黎族的古代建筑风格。没有多久，声纳图上又发现新的目标。潜水器掉头搜寻，发现了一大片呈正南北向建造的建筑群落。群落不大，但石料加工更精细。石料三面都有加工的痕迹，十分平整精细，另外所有散落的石块都是有序排列的。这一区域还有数米宽的南北向石板大道。从这些可以看出，那个时代有相当高的文化水准。于教授推测，这里可能是古城的“富人区”。绕过石质城墙后，便是所谓的“贫民区”。
于教授说，通过对湖周围地区地理地质环境的考察和比较，可以肯定这座古城是在一次巨大的自然灾害中陷落湖底的。该建筑群依山傍水，位于小江断裂带西支的深断裂带上。公元110年东汉时期这里曾经发生过一次大地震。于教授还说，尽管古城的年代还需要进一步确定，但是有一点可以肯定——抚仙湖底确实有一座陷落的古滇时期建筑群落，且已经初具城市功能，因为具有不同级别的建筑群是判断能否构成城市的重要指标。该遗址面积有2.4km2，比世界著名的“庞贝古城”还要大。由于水下考察时没有发现任何动植物残骸及陶瓷、砖瓦的残片，这给探测年代带来了相当的困难，但从水下建筑群石料的打制方式来看，湖中古城与滇中发现的长城颇为相似，应与其处于同一时代，即距今约两千年。

文中认为“那个时代有相当高的文化水准”，不能作为这一观点依据的一项是______。

A．石块堆放整齐

B．数米宽的南北向石板大道

C．石料三面都有加工的痕迹，十分平整精细

D．建筑群带有明显的当地黎族的古代建筑风格
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单项选择题

"Clean your plate!" and "Be a member of the clean-plate club!" Just about every kid in the US has heard this from a parent or grandparent. Often, it’s accompanied by an appeal. "Just think about those starving orphans (孤儿) in Africa!"
Sure, we should be grateful for every bite of food. Unfortunately, many people in the US take a few too many bites. Instead of saying "clean the plate," perhaps we should save some food for tomorrow.
According to news reports, US restaurants are partly to blame for the growing bellies (肚子). A waiter puts a plate of food in front of each customer, with two to four times the amount recommended by the government, according to a USA Today story.
Americans traditionally associate quantity with value and most restaurants try to give them that. They serve large portions to stand apart from competitors and to give the customers value. They prefer to have customers complain about too much food rather than too little.
Barbara Rolls, a nutrition professor at Pennsylvania State University, told USA Today, that restaurant portion sizes began to grow in the 1970s, the same time that the American waistline began to expand.
Health experts have tried to get many restaurants to serve smaller portions. Now, apparently, some customers are calling for this too. A restaurant industry trade magazine reported last month that 57 percent of more than 4 000 people surveyed believed restaurants serve portions that are too large; 23 percent had no opinion; 20 percent disagreed.
But a closer look at the survey indicates that many Americans who can’t afford fine dining still prefer large portions. Seventy percent of those earning at least $150 000 per year prefer smaller portions, but only 45 percent of those earning less than $ 25 000 want smaller.
It’s not that working class Americans don’t want to eat healthy. It’s just that, after long hours at low-paying jobs, getting less on their plate hardly seems like a good deal. They live from paycheck to paycheck, happy to save a little money for next year’s Christmas presents.

According to the passage, working class Americans dining in restaurants ______.

A. eat less to save money
B. get less on their plate
C. want to get their money’s value back
D. do not care about their health
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